Denna sida har översatts automatiskt och översättningens korrekthet kan inte garanteras. Vänligen se engelsk version för en källtext.

Studie av lot-till-lot-konsistens för ett 21-valent pneumokockkonjugatvaccin hos friska spädbarn från 2 månaders ålder

1 oktober 2026 uppdaterad av: Sanofi

En fas 3, randomiserad, modifierad dubbelblind, aktivkontrollerad, parallellgruppsstudie med lot-till-lot-konsistens i 4 armgrupper för att undersöka säkerheten och immunogeniteten hos ett 4-dosers schema med ett 21-valent pneumokockkonjugatvaccin hos friska spädbarn och småbarn

This is a phase 3 randomized, modified double-blind study whose purpose is to measure whether 3 lots of the investigational pneumococcal vaccine PCV21 can help the body to develop germ-fighting agents called "antibodies" (immunogenicity) in a similar way (ie, same immune response) when they are given to infants aged from approximately 2 months (42 to 89 days) and are safe compared to a licensed 20-valent pneumococcal vaccine (20vPCV) (Prevnar 20™).

The study duration per participant will be up to approximately 17 months. The study vaccines (either PCV21 or 20vPCV) will be administered at approximately 2, 4, 6 and 12 months of age. Cohort A will include randomization to three PCV21 formulation groups or one 20vPCV comparator group (Group 1-4, approximately 896 total participants), whereas Cohort B will include randomization to three PCV21 formulation groups only (Groups 1-3, approximately 1299 total participants). Routine pediatric vaccines will be given as per local recommendations.

There will be 6 study visits: Visit (V)01, V02 separated from V01 by 60 days, V03 separated from V02 by 60 days, V04 separated from V03 by 30 days, V05 at 12 months of age, V06 separated from V05 by 30 days

Studieöversikt

Studietyp

Interventionell

Inskrivning (Beräknad)

2195

Fas

  • Fas 3

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

  • Namn: Trial Transparency email recommended (Toll free for US & Canada)
  • Telefonnummer: option 6 800-633-1610
  • E-post: Contact-US@sanofi.com

Studieorter

    • Arkansas
      • Fayetteville, Arkansas, Förenta staterna, 72703
        • Rekrytering
        • Northwest Arkansas Pediatric Clinic- Site Number : 8400039
    • California
      • Huntington Park, California, Förenta staterna, 90255
        • Rekrytering
        • Matrix Clinical Research - Huntington Park- Site Number : 8400029
      • Los Angeles, California, Förenta staterna, 90008
        • Rekrytering
        • Community Clinical Research- Site Number : 8400030
      • Los Angeles, California, Förenta staterna, 90057
        • Rekrytering
        • Matrix Clinical Research - Los Angeles- Site Number : 8400028
    • Florida
      • Tampa, Florida, Förenta staterna, 33613
        • Rekrytering
        • PAS Research - Tampa- Site Number : 8400034
    • Kentucky
      • Bardstown, Kentucky, Förenta staterna, 40004
        • Rekrytering
        • Kentucky Pediatric Research- Site Number : 8400036
    • Michigan
      • Allen Park, Michigan, Förenta staterna, 48101
        • Rekrytering
        • Michigan Institute of Research- Site Number : 8400004
    • New York
      • Syracuse, New York, Förenta staterna, 13210
        • Rekrytering
        • Nappi Wellness Institute\t- Site Number : 8400037
    • South Carolina
      • Charleston, South Carolina, Förenta staterna, 29407
        • Rekrytering
        • Tribe Clinical Research At Neighbors Pediatrics- Site Number : 8400008
      • Simpsonville, South Carolina, Förenta staterna, 29681
        • Rekrytering
        • Parkside Pediatrics - Simpsonville- Site Number : 8400005
      • Spartanburg, South Carolina, Förenta staterna, 29301
        • Rekrytering
        • Tribe Clinical Research - Spartanburg- Site Number : 8400026
    • Texas
      • Edinburg, Texas, Förenta staterna, 78539
        • Rekrytering
        • PAS Research - Children's Care Clinic- Site Number : 8400035
      • Richmond, Texas, Förenta staterna, 77469
        • Rekrytering
        • Pediatric Center - Richmond- Site Number : 8400038
    • Utah
      • Ogden, Utah, Förenta staterna, 84404
        • Rekrytering
        • Rio Clinical Trials - Canyon View- Site Number : 8400031
      • San Pedro Sula, Honduras, 21104
        • Rekrytering
        • Investigational Site Number : 3400001
      • Tegucigalpa, Honduras, 11101
        • Rekrytering
        • Investigational Site Number : 3400003
      • Tegucigalpa, Honduras, 11101
        • Rekrytering
        • Investigational Site Number : 3400002
      • Guayama, Puerto Rico, 00786
        • Rekrytering
        • Investigational Site Number : 6300005
      • San Juan, Puerto Rico, 00918
        • Rekrytering
        • Investigational Site Number : 6300006
      • Trujillo Alto, Puerto Rico, 00976
        • Rekrytering
        • Investigational Site Number : 6300007
      • Bangkok, Thailand, 10400
        • Rekrytering
        • Investigational Site Number : 7640002
      • Chiang Mai, Thailand, 50180
        • Rekrytering
        • Investigational Site Number : 7640004
      • Hat Yai, Thailand, 90110
        • Rekrytering
        • Investigational Site Number : 7640003
      • Khon Kaen, Thailand, 40002
        • Rekrytering
        • Investigational Site Number : 7640001
      • Pathum Wan, Thailand, 10330
        • Rekrytering
        • Investigational Site Number : 7640005

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

1 månad till 2 månader (Barn)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Aged 42 to 89 days on the day of inclusion
  • Participants who are healthy as determined by medical evaluation including medical history and physical examination
  • Born at full term of pregnancy (≥ 37 weeks) and with a birth weight ≥ 2.5 kg or born after a gestation period above 28 (> 28 weeks) through 36 weeks with a birth weight ≥ 1.5 kg, and in both cases medically stable

Exclusion Criteria:

  • Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy; or long-term systemic corticosteroid therapy
  • History of microbiologically confirmed Streptococcus pneumoniae infection or disease
  • Any contraindication to the routine pediatric vaccine being administered in the study
  • History of seizure or significant stable or progressive neurologic disorders such as infantile spasms, inflammatory nervous system diseases, encephalopathy, cerebral palsy
  • Known systemic hypersensitivity to any of the study interventions components, or history of a life-threatening reaction to the study interventions used in the study or to a product containing any of the same substances3
  • Laboratory-confirmed or known thrombocytopenia, as reported by the parent(s) / legally acceptable representative (LAR(s)), contraindicating intramuscular (IM) injection.
  • Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM injection.
  • Chronic illness that, in the opinion of the investigator, is at a stage where it might interfere with study conduct or completion
  • Moderate or severe acute illness/infection (according to investigator judgment) or febrile illness (temperature ≥ 38.0°C [≥ 100.4°F]) on the day of study intervention administration.
  • Receipt of any BCG vaccine within 4 weeks preceding the first study intervention administration or planned receipt any BCG vaccine within the study period
  • Previous vaccination against Streptococcus pneumoniae
  • Previous vaccination against the following antigens: diphtheria, tetanus, pertussis, H. influenzae type b, poliovirus
  • Receipt of more than 1 dose of hepatitis B vaccine
  • Receipt of immune globulins, blood or blood-derived products since birth
  • Participation at the time of study enrollment (or in the 6 weeks preceding the first study intervention administration) or planned participation during the present study period in another clinical study investigating a vaccine, drug, medical device, or medical procedure

Note: The above information is not intended to contain all considerations relevant to a potential participation in a clinical trial.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Förebyggande
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Fyrdubbla

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Group 1: PCV21

Participants will be administered via intramuscular injection (IM) PCV21 vaccine lot 1 for Doses 1, 2 and 3; PCV21 lot 1, or different lot if needed, for Dose 4 at 2, 4, 6 and 12 months of age co-administered with routine pediatric vaccines.

Pharmaceutical form: Suspension for injection

Route of administration: Intramuscular

Andra namn:
  • 515
Experimentell: Group 2: PCV21

Participants will be administered via IM injection PCV21 vaccine lot 2 for Doses 1, 2 and 3; PCV21 lot 2, or different lot if needed, for Dose 4 at 2, 4, 6 and 12 months of age co-administered with routine pediatric vaccines.

Pharmaceutical form: Suspension for injection

Route of administration: Intramuscular

Andra namn:
  • 515
Experimentell: Group 3: PCV21

Participants will be administered via IM injection PCV21 vaccine lot 3 for Doses 1, 2 and 3; PCV21 lot 3, or different lot if needed, for Dose 4 at 2, 4, 6 and 12 months of age co-administered with routine pediatric vaccines.

Pharmaceutical form: Suspension for injection

Route of administration: Intramuscular

Andra namn:
  • 515
Aktiv komparator: Group 4: 20vPCV (Cohort A only)

Participants will be administered via IM injection 20vPCV at 2, 4, 6 and 12 months of age co-administered with routine pediatric vaccines.

Pharmaceutical form: Suspension for injection

Route of administration: Intramuscular

Andra namn:
  • Prevnar 20™

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
For all participants: Serotype specific Immunoglobulin g (IgG) Geometric Mean Concentration (GMC)
Tidsram: 30 days after the third dose of PCV21 vaccine

Serotype specific IgG concentrations for all serotypes included in PCV21 vaccine as measured by electrochemiluminescence assay (ECL)

30 days after the third dose of PCV21 vaccine

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
For all participants: Serotype specific IgG concentration ≥ 0.35 µg/mL
Tidsram: 30 days after the third dose of PCV21 vaccine

Serotype specific IgG concentration ≥ 0.35 μg/mL (seroresponse) for all serotypes included in PCV21 as measured by ECL

30 days after the third dose of PCV21 vaccine
For all participants: Presence of any immediate adverse events (AEs)
Tidsram: Within 30 minutes after each vaccine injection

Number of participants experiencing immediate AEs

Within 30 minutes after each vaccine injection
For participants in Cohort A (reactogenicity subset): Presence of solicited injection site and systemic reactions through 7 days after each vaccine injection
Tidsram: Through 7 days after each vaccine injection

Number of participants experiencing solicited injection site and systemic reactions

Through 7 days after each vaccine injection
For all participants: Presence of unsolicited (spontaneously reported) injection site reactions and unsolicited systemic AEs
Tidsram: Through 30 days after each vaccine injection

Number of participants experiencing unsolicited injection site reactions and unsolicited systemic AEs

Through 30 days after each vaccine injection
For all participants: Presence of serious adverse events (SAEs) and adverse events of special interest (AESIs) throughout the study
Tidsram: Throughout the study (through 6 months post-last vaccine injection)

Number of participants experiencing SAEs and AESIs

Throughout the study (through 6 months post-last vaccine injection)

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

20 januari 2026

Primärt slutförande (Beräknad)

7 juni 2027

Avslutad studie (Beräknad)

29 maj 2028

Studieregistreringsdatum

Först inskickad

15 januari 2026

Först inskickad som uppfyllde QC-kriterierna

15 januari 2026

Första postat (Faktisk)

16 januari 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

5 oktober 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

1 oktober 2026

Senast verifierad

1 oktober 2026

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

  • PSK00029
  • PSK00029 (Annan identifierare: Sanofi Identifier)
  • U1111-1308-6832 (Annan identifierare: WHO ICTRP)

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Ja

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

Prenumerera